#pragma once
#include "bieuthuc.h"
#include <string>
class BieuThucTich :
	public BieuThuc
{
private :
	BieuThuc * m_u;
	BieuThuc * m_v;
public:
	BieuThuc& khoitao(float *x,int i); 
	string bieuDien();
	string bieuDienDaoHam();
	float tinhGiaTri(float x);
	float tinhDaoHam(float x);
	BieuThucTich();
	BieuThucTich(BieuThuc *a,BieuThuc *b);
	~BieuThucTich();
};
